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http://hdl.handle.net/10773/37707
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Santos, Filipe M. | pt_PT |
dc.contributor.author | Barbosa, Paula C. | pt_PT |
dc.contributor.author | Pereira, Rui F.P. | pt_PT |
dc.contributor.author | Silva, M. Manuela | pt_PT |
dc.contributor.author | Gonçalves, Helena M.R. | pt_PT |
dc.contributor.author | Nunes, Sílvia C. | pt_PT |
dc.contributor.author | Figueiredo, Filipe L. | pt_PT |
dc.contributor.author | Valente, Artur J.M. | pt_PT |
dc.contributor.author | de Zea Bermudez, Verónica | pt_PT |
dc.date.accessioned | 2023-05-15T08:59:51Z | - |
dc.date.available | 2023-05-15T08:59:51Z | - |
dc.date.issued | 2020-02-05 | - |
dc.identifier.issn | 0014-3057 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/37707 | - |
dc.description.abstract | Novel electrolytes composed of chondroitin sulfate A (CSA) and citric acid (CA) have been prepared using a clean, safe, and fast route. These electrolytes exhibit different physical-chemical properties, depending on the amount of CA. For X > 82.3%, where X is the mass ratio, in %, of CA/(CA + CSA), whitish polycrystalline powders result. Lower amounts of CA leads to the production of translucent, amorphous films, sticky for X = 75.6 and 82.0, brittle for X < 43.6 and crack-free, self-standing for 43.6 < X < 75.6%. The results obtained provide evidence that, at low pH, strong hydrogen bonding interactions take place between the anionic sulfonic and carboxylic groups of CSA and CA. CA exerts a key role, acting as a cross-linker and proton source, while simultaneously influencing sample morphology. At room temperature the highest ionic conductivity is achieved at X = 60.8%. A significant enhancement of the ionic conductivity of this sample occurs with the increase of relative humidity (RH) (from 3.1 × 10−7 to 3.7 × 10−2 S cm−1 30% for RH = 30 and ~100%, respectively). | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | Elsevier | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FFIS%2F04650%2F2013/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F00686%2F2013/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F50006%2F2019/PT | pt_PT |
dc.relation | UID/QUI/00686/2016 | pt_PT |
dc.relation | POCI-01-0145-FEDER-016422 | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/SAICTPAC%2F0032%2F2015/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FCTM%2F50011%2F2019/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FCTM%2F50025%2F2013/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FQUI%2FUI0616%2F2014/PT | pt_PT |
dc.relation | PTDC/CTM/NAN/0956/20149 | pt_PT |
dc.relation | POCI-01-0145-FEDER-016884 | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F87759%2F2012/PT | pt_PT |
dc.relation | NORTE-01-0145-FEDER-030858 | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FBTM-MAT%2F30858%2F2017/PT | pt_PT |
dc.rights | openAccess | pt_PT |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | pt_PT |
dc.subject | Chondroitin sulfate | pt_PT |
dc.subject | Biopolymer electrolytes | pt_PT |
dc.subject | Ionic conductivity | pt_PT |
dc.subject | Citric acid | pt_PT |
dc.title | Proton conducting electrolytes composed of chondroitin sulfate polysaccharide and citric acid | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.title | European Polymer Journal | pt_PT |
degois.publication.volume | 124 | pt_PT |
dc.identifier.doi | 10.1016/j.eurpolymj.2019.109453 | pt_PT |
dc.identifier.essn | 1873-1945 | pt_PT |
dc.identifier.articlenumber | 109453 | pt_PT |
Appears in Collections: | CICECO - Artigos DEMaC - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Proton Conducting Electrolytes Composed of Chondroitin Sulfate.pdf | 12.65 MB | Adobe PDF | View/Open |
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